From a2b47c7439864d3a057b234c2287b5dcab5b6192 Mon Sep 17 00:00:00 2001
From: Thomas Waldmann <tw@waldmann-edv.de>
Date: Sat, 31 Jan 2026 08:06:11 +0100
Subject: [PATCH] CI: cache tox environments

---
 .github/workflows/ci.yml | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index d211267e8..b3abdcd02 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -179,6 +179,15 @@ jobs:
             ${{ runner.os }}-pip-
             ${{ runner.os }}-
 
+    - name: Cache tox environments
+      uses: actions/cache@v4
+      with:
+        path: .tox
+        key: ${{ runner.os }}-tox-${{ matrix.toxenv }}-${{ hashFiles('requirements.d/development.txt', 'pyproject.toml') }}
+        restore-keys: |
+          ${{ runner.os }}-tox-${{ matrix.toxenv }}-
+          ${{ runner.os }}-tox-
+
     - name: Install Linux packages
       if: ${{ runner.os == 'Linux' }}
       run: |